fix(web): visual QA front-end items U4–U6, U13–U16 and copy list

- U4: form save failures toast the first problem and scroll/focus the first
  invalid field (policy draft, settings cards, resource drawers, subscription
  form) via lib/form-errors.
- U5: FormField keeps 8px between a hint and the next label.
- U6: file manager status bar keeps free space left-aligned, clear of the
  Agent button.
- U13: move/copy dialog stops "target is the source folder / inside the
  source" before requesting a preview (transferTargetProblem + tests).
- U14: account popover uses the solid float material.
- U15/U16: inbox tile hint shortened; TMDB assign dialog uses the shared
  Select and labelled fields (type, TMDB ID, note).
- Copy: "TMDB 已保存" spacing, API Key block no longer repeats the section
  title, whole-day intervals read "每 7 天", "最高级别:提示",
  "延后:已有计划在途", failed records show "未生成目标路径", upstream model
  column "默认模型".

Co-Authored-By: Claude Opus 5.5 <[email protected]>

apps/web/app/components/schedules/labels.ts

@@ -55,6 +55,8 @@ export function describeSchedule(s: ScheduleSpec): string {
   if (s.type === "cron") return `cron ${s.cron}`;
   if (s.everyMs < 1000) return `每 ${s.everyMs} 毫秒`;
   const { value, unit } = splitInterval(s.everyMs);
+  // 整天的间隔按天说(每 168 小时 → 每 7 天)
+  if (unit === "h" && value >= 24 && value % 24 === 0) return `每 ${value / 24} 天`;
   return `每 ${value} ${UNIT_LABEL[unit]}`;
 }